Peep sights and 64s are like peas and carrots! My early production 64 carbine wears a Lyman 56a and my late production rifle wears a 66a. My favorite though is my late fathers 64 carbine with a "climbing Lyman" 21.

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Charter Member
Ancient order of the 1895 Winchester

"It's an insecure and petite man who demands all others like what he likes and dislike what he dislikes."
szihn